this is the e90 m3 sedan. those are 750i wheels in the front which are 18x8 with a 30mm offset. they appear to be 14.4" rotors up front. This is just being tested for probaly "high speed testing" I believe there won't be a e92 M3 convertible, just sedan and coupe because they are now using a metal retractable roof the on e92 drop-tops for some dumbass reason.